Perforator



Jan. 21, 1936. c s. wHlTNEY 2,028,264

' PERFORATOR Filed April 22,1932

MUL T/PLEX TRANSMITTER a l0 o-|||' 1' M [-7 T v CLUTCH STEP MAG/VETAAAAAA n INVENTOR C'harles S. W 11171269 BY LUM,M M

ATTOR EYS Patented Jan. 2-1, 1936 UNITED STATES PERFORATOR Charles S.Whitney, Brooklyn, N. Y., assignor to The Teleregister Corporation, NewYork, N. Y., a corporation of Delaware Application April 22, 1932,Serial No. 606,868

10 Claims.

- vision of improved means for causing the proper cooperation of asensing mechanism and a tape perforator, or the like, to insure the.proper sequential operation of the various elements of these mechanisms.

Another object of the invention is to provide a controlling mechanismcomprising a plurality of relays which automatically function to openand closethe circuits to the various elements of the sensing mechanismand a tape perforator in the proper sequential order.

Other objects of' the .invention will appear from the followingdescription taken in connection with the figure of the drawing, whichshows a diagram of the circuit arrangement of a tape sensing mechanismand a tape reperforator.

The tape sensing mechanism may be of any well known constructionincluding sensing pins or; feelers which cooperate with perforations,electrical conducting deposits on the tape, or any equivalent records,to close circuits or to control the operation of circuit closingswitches indicated diagrammatically in the figure and designated Fl, F2,F3, F4 and F5. A tape sensing mechanism with which the circuit systemdisclosed may be employed is shown in the patent to Benjamin, No.1,298,440, granted March 25, 1919. The. tape reperforator may be of anywell known construction, such as described in Bulletin No. 143,issuedNovember, 1930 by the Teletype Corporation, Chicago, Illinois, andentitled Teletype Printing Telegraph Systems, Description andAdjustments, Reperforator (Model 12), and inso far. as this invention isconcerned this mechanism may comprise means for depositing electricalconducting material on a tape or card or otherwise make a record of theinformation sensed. When the sensing pins or feelers in the embodimentdisclosed find perforations in a tape fed over these .feelers by a tapestep magnet, the switches Fl, F2, F3, F4 and F5 are moved'against themarking contacts M in various; combinations to prepare circuits over thecoils'ofthe punch selecting magnets Sl, S2, S3, S4 and S5 in the tapereperforator. The drawing diagramatically illustrates parts of a Wellknown form of multiplex transmitter and a well known form ofreperforator.

When these selector magnets are energized they-will control the movementof selector bars,

(not shown), in various combinations to control the selection ofpunches, (not shown), which Will be actuated to perforate a tape when acircuit is made across the clutch trip magnet which sets thereperforator in operation, the mechanism functioning to punch the tapeas controlled by the magnets Sl, S2, S3, S4 and S5, and then to feed thetape to present another portion of the tape to the punches. Thereperforator may be driven by a motor diagrammatically indicated at mo.

The mechanism is set in operation by closing the key K which connectsbattery over the armature and break contact lc of the relay C, and overthe coil of the slow operating relay A, to ground, causing this relayto, operate. Before this relay is operated, however, battery is extended over the armature and break contact la of relay A, over thevarious operated switches Fl F2, F3, F4 and F5. of the multiplextransmitter engagedwith the marking contacts M, and over the coils ofthe corresponding punch selector magnets Sl, S2, S3, S4 and S5, toground, causing the selector magnets to operate and to select thecorresponding punches for operation.

Immediately after the selection has been made, the relay A opens thecircuit over said punch selector magnets, and at the same time closescircuits from battery across the key K as follows: a circuit over thearmature and make contact 211 of relay A which operates the tape stepmagnet in the multiplex transmitter causing the tape to stepforwardtothe next series of perforations; a circuit over the armatureand make contact 311 of relay A, over the armature and break contact lbof relay B and the coil of the clutch trip magnet of the tapereperforator which sets the tape reperforator in operation; and acircuit .over the armature and make contact 4a of relay A andthe coil ofrelay B which causes the slow-to-release relay B to operate and to Iopen the circuit over the coil-of the clutch trip magnet atits armatureand break contact lb and to close a circuit over the coil of the relay Cat itsarmature and make contact 22). The relay C operates and at itsarmature and break contact lc opens the circuit over the relay A,causing this relay to deenergize, which at its armature and breakcontact la closes circuits over the operated switches Fl, F2, F3, F4 andF5 and the coilsof the selector magnets .Sl, S2, S3, S4 and S5, toground.

The deenergization of the relay A also opens the circuits overthetapestep magnet and the clutch trip magnet at its armatures and makecontacts 2a and 3a, and at its armature and make contact to it opens thecircuit over the slow-to-release relay B, which upon release closes inpart the circuit over the clutch trip magnet at its armature and breakcontact lb and opens the circuit over the relay 0 at its armature andmake contact 2b causing the relay C to deenergize, which closes thecircuit over the relay A at its armature la to initiate another cycle ofI operation.

The result of a continued series of operating cycles as described isthat there is produced by the reperforator a perforated tape which shallbe a duplicate, as regards perforation combinations, of the perforatedtape passing through the multiplex transmitter. The speed at which thisduplicate tape is produced is controlled and held constant by thecharacteristics of the controlling relays, and may be so adjusted byproperly specifying the characteristics of these relays as to operatethe multiplex transmitter and reperforator at the maximum speedspermitted by the mechanical construction of these two units.

The condensers and resistors shown are for protection of the relaycontacts against burning, or for limiting the currents in the variouscircuits.

While the invention has been described With reference to a particularembodiment involving particular circuits and combinations of relaysoperating as described, it is to be understood that the claims are to beconstrued to cover all embodiments which fall within the spirit of thisinvention, and that various other sensing and reproducing mechanisms maybe controlled by the circuits and combinations of relays disclosed.

What I claim is:

l. The combination with a tape sensing mechanism and a reperforator forduplicating perforated tapes, of a system of relays for controlling thecoordinated operation of said sensing mechanism and reperforator duringa continued series of operating cycles, said system of relays comprisinga first relay, a second relay and a third relay, each of said relayshaving an armature for controlling the operation of another of saidrelays and each relaybeing controlled by the armature of another of saidrelays, and relay control circuits interconnecting said relays andarmatures for causing cyclic operation of the relays in the order named.

2. The combination with a tape sensing mechanism and a reperforator forduplicating perforated tapes, of a system of relays operable repeatedlyand at uniform intervals under control of their own circuits forcontrolling the speed and coordinated operation of said sensingmechanism and reperforator during a continued series of cycles, saidsystem of relays comprising a first relay, a second relay and a thirdrelay, each of said relays having an armature for controlling theoperation of another of said relays and each relay being controlled bythe armature of another of said relays, and'relay control circuitsinterconnecting said relays and armatures for causing cyclic operationof the relays in the order named.

3. The combination with a tape sensing mechanism including circuitclosing devices controlled by perforations in the tape and a tapefeeding magnet, of a perforating mechanism including punch selectingmagnets and a clutch magnet for controlling the operation of saidperforating mechanism, and mechanism operable when set in operation torepeatedly and at uniform intervals to first close circuits over saidtape feeding magnet and clutch magnet and then open said circuits, andsubsequently complete circuits across said devices and said selectingmagnets, said mechanism comprising a start relay, a time delay relay anda release relay periodically operable in the order named, said startrelay initiating operation of said tape feeding magnet and said clutchmagnet, said time delay relay causing deenergization of said clutchmagnet, and said release relay causing deenergization of said startrelay.

4. The combination of a tape sensing mechanism including circuit closingdevices controlled by perforations in a tape and a tape feeding magnet,of a perforating mechanism including punch selecting magnets and aclutch magnet for controlling the operation of said perforatingmechanism, and a system of relays operable repeatedly and at uniformvintervals under control of their own circuits to close circuits oversaid devices and said punch selecting magnets, said tape feeding magnetand said clutch magnet, said system of relays comprising a start relay,a time delay relay and a release relay, each of said relays having anarmature for controlling the operation of another of said relays, saidrelay control circuits for the system of relays interconnecting saidrelays and armatures for causing operation of the relays in the ordernamed.

5. The combination of a tape sensing mechanism including circuit closingdevices controlled by perforations in a tape and a tape feeding magnet,of a perforating mechanism including punch selecting magnets and aclutch magnet for controlling the operation of said perforatingmechanism, and a chain of relays operable to first close circuits oversaid tape feeding and clutch magnets and then open said circuits, andsubsequently complete circuits across said devices and said selectormagnets, said chain of relays comprising a start relay, at least onetime delay relay and a release relay, and. relay control circuitsinterconnecting said relays to cause cyclic operation thereof in theorder named.

6. The combination of a tape sensing mechanism including circuit closingdevices controlled by perforations in a tape and a tape feeding magnet,of a perforating mechanism including punch selecting magnets and aclutch magnet for controlling the operation of said perforatingmechanism, circuits including said devices and said selecting magnets, aslow operating relay connected in parallel with said circuits andadapted to open said circuits after said selecting magnets have beenenergized, and to close circuits over the coils of said tape feeding andclutch magnets, and means for releasing said relay to initiate a secondoperation.

'7. The combination of a tape sensing mechanism including circuitclosing devices controlled by perforations in a tape and a tape feedingmagnet, of a perforating mechanism including punch selecting magnets anda clutch magnet for controlling the operation of said perforatingmechanism, a slow operating relay in parallel with circuits made over anarmature of said relay and said devices and the coils of said selectingmagnets, circuits over the coils of said tape feeding and clutch magnetsadapted to be closed by operation of said relay, and a slow releaserelay operated and released under control of said slow operating relayand operating to open the circuit over the coil of said clutch magnetand to maintain it open for a predetermined interval of time after therelease of said slow operating relay.

8. The combination of a tape sensing mechanism including circuit closingdevices controlled by perforations in a tape and a tape feeding magnet,of a perforating mechanism including punch selecting magnets and aclutch magnet for controlling the operation of said perforatingmechanism, a slow operating relay in parallel with circuits made over anarmature of said relay and said devices and the coils of said selectingmagnets, circuits over the coils of said tape feeding and clutch magnetsadapted to be closed by operation of said relay, a slow release relayoperated and released under control of said slow operating relay andoperating to open the circuit over the coil of said clutch magnet and tomaintain it open for a predetermined interval of time after the releaseof said slow operating relay, and a quick operating relay operated undercontrol of said slow release relay for opening and closing the circuitover said slow operating relay and said devices and selecting magnets.

9. The combination of a. tape sensing mechanism including circuitclosing devices controlled by perforations in a tape and a tape feedingmagnet, of a perforating mechanism including punch selecting magnets anda clutch magnet for controlling the operation of said perforatingmechanism, and a chain of three relays including a slow operating relay,a slow releasing relay and a quick operating relay, said slow operatingrelay opening circuits over said devices and selecting magnets andclosing circuits over said tape feeding and clutch magnets and saidslowto-release relay, said slow-to-release relay opening the circuitover said clutch magnet and closing the circuit over said quickoperating relay, said quick operating relay opening the circuit oversaid slow operating relay, which releases said slow-to-release relaywhich in turn releases said quick operating relay restoring the chain ofrelays to normal and initiating another operation.

10. The combination of a. tape sensing mechanism involving circuitclosing devices adapted to be controlled by perforations in a tape and atape stepping magnet, a reperforator including punch selecting magnetsand a clutch trip magnet operable to release mechanism for punching thetape in accordance with the selecting magnets operated and for feedingthe tape, circuits adapted to be made over said circuit closing devicesof the sensing mechanism and the coils of said punch selecting magnets,a slow operating relay operating to close circuits over said tapestepping magnet and saidclutch trip magnet and to open the circuits oversaid circuit closing devices and over the coils of said punch selectingmagnets, a second relay energized under control of said first relay andoperable to open the circuit over the clutch trip magnet and to closeanother circuit, and a relay in said last mentioned circuit adapted uponoperation to open the circuit to said first relay, this relay thereuponfunctioning to open the circuits over the coils of the tape steppingmagnet, the clutch trip magnet and the second mentioned relay and toagain close the circuit over the switches in the sensing mechanism andthe coils of the punch selecting magnets, said second mentioned relayupon deenergization causing the release of said third relay, and saidthird relay upon releasing causing the reoperation of said first relayto start another cycle of operation as described. CHARLES S. WHITNEY.

